I have a Benelli Nova 12 gauge with a 28'' barrel and am going to be turkey hunting with it this spring...i am going to be using an H.S. Undertaker choke tube...what loads have you guys had luck with?

Winchester loads, either either the Supreme or the Extended Range work well in a lot of different guns. I've got an Undertaker too and they all pattern well, some pattern better.

http://www.cabelas.com/cabelas/en/templates/links/link.jsp?id=0014389215848a&type=product&cm Cat=search&returnPage=search-results1.jsp&QueryText=turkey+loads&N=4887 &Ntk=Products&Ntx=mode+matchall&Nty=1& amp;Ntt=turkey+loads&noImage=0
those are the kinds i use they have good knockdown power especially ifyou use a modified choke
trust me they'll put lead in your pencil